package edu.sctu.practice.class02.luohui.practice03;

/**
 * Created by asus on 2015/11/5.
 */
public class Main {
    public static void main(String[] args) {
        Learning learning;
        learning=new Database();
        learning.study();
        learning=new Html();
        learning.study();
        learning=new Java();
        learning.study();
    }
}
